In the universe are billions of galaxies. In our galaxy are billions of planets. But there is Only One Earth!

The Met Gala, the biggest night of fashion took place last week, with a theme centered around the Gilded Age, a term coined by Mark Twain from the time period between from 1870 to 1890.

52 years ago today, the first Earth Day was marked in the US as a peaceful call for environmental reform, following a massive oil spill off the coast of California.